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All Journal Jurnal Bios Logos Jurnal Agroekoteknologi Terapan
Kumajas, Nontje
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Medicine & Pharmacology

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Ammonia Mitigation Practices in A Closed-House Broiler Farm in An Agrocomplex System: A Case Study from Moncongloe Bulu, Indonesia Tampi, Syalomita Y.; Tangkere, Evacuree S.; Tangkau, Linda M.S.; Rumondor, Delly B.J.; Kumajas, Nontje; Sompie, Florencia N.
Jurnal Agroekoteknologi Terapan Vol. 7 No. 1 (2026): ISSUE JANUARY-JUNE 2026
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v7i1.67454

Abstract

Ammonia accumulation is one of the main air-quality challenges in intensive broiler production, particularly in closed-house systems where large numbers of birds are reared under controlled environmental conditions. This study aimed to analyze the practices used to reduce ammonia (NH3) concentration in the closed-house broiler facility of CH Kembar Farm, Moncongloe Bulu, Indonesia. The study was conducted from September to November 2024 using a descriptive mixed-method approach. Data were collected through direct field observation, interviews with farm management, and NH3 measurement using an ammonia kit test (Hydrion AM-40). The findings showed that ammonia control at the farm was supported by routine maintenance of key housing equipment, including exhaust fans, blower fans, cooling pads, and backup electrical systems, as well as by regular litter management through EM-4 application and litter stirring three times per week until harvest. The measured NH3 concentration was consistently reported as 10 ppm at all observation points, indicating that the in-house ammonia condition remained below the threshold value cited in the source manuscript. These results suggest that effective ammonia mitigation in closed-house broiler production depends not only on housing technology, but also on the consistency of daily operational management. Overall, this study provides practical field-based evidence that integrated environmental-control and litter-management practices can support acceptable air-quality conditions in commercial broiler production under tropical conditions. Keywords: air quality; ammonia concentration; broiler chickens; closed-house system; litter management
Performance of Laying Chickens with Feed Additive Cinnamon Flour (Cinnamomum burmanni (Nees & T.Nees) Blume) Sompie , Florencia; Leke, Jein Riny; Laihad , Jacqueline; Kiroh , Hengky; Kumajas, Nontje; Siahaan , Ratna
JURNAL BIOS LOGOS Vol. 14 No. 1 (2024): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v14i1.53654

Abstract

Chickens are important commodities due to human need eggs to meet animal protein. Increasing of resistance of bacteria to synthetic antibiotics and consumer understanding of health and food safety have stimulated use of antibiotic growth promoters (AGP) in poultry industry. AGP applied sustainable feed management steps to improve gut health and poultry growth performance. Cinnamon, one of the spices as a natural product. This useful source due to antioxidants, anti-microbial, anti-inflammatory, antifungal, and hypo-cholesterolemic effects and its capability to activate digestion enzymes in intestine. This research aimed to analyze the performance of laying chicken eggs fed with cinnamon flour. The treatments used were cinnamon flour with levels R0 (basal ration, without cinnamon flour/CF, R1 (99.5% BR+ 0.5% CF), R2 (99% BR+ 1% CF), R3 (98% BR + 1.5 % CF), and R4 (98% BR + 2% CF). Data were analyzed with Completely Randomized Design and Duncan's test. Variables were ration consumption, Hen Day Production/HDP and ration conversion. Results showed that adding 2% cinnamon flour significant effect on feed consumption, HDP (P< 0,01) but insignificant on ration conversion (P>0.05). Cinnamon flour as feed additive source up to 2% level can increase the performance of laying hens.
Co-Authors Florencia N. Sompie Kiroh , Hengky Laihad , Jacqueline Leke, Jein Riny Rumondor, Delly B.J. Siahaan , Ratna Sompie , Florencia Tampi, Syalomita Y. Tangkau, Linda M.S. Tangkere, Evacuree S.